welcome to sober recovery, code.
you'll find that the more you come on in here, post your own thoughts and questions, and read other people's, the more you will learn, get comfortable with what you're doing, and grounded you will feel.
I'd like to say something about boundaries. You'll read alot of boundaries in this forum.
A boundary is a barrier, a protection of sorts, that YOU place between you and another person. It is to help YOU to feel safe. A control tactic would be for you to tell your husband that he cannot smoke weed while at home, on vacation, while married to you. A boundary would be that should he decide to smoke, you will leave the room, leave the house, move out, etc, to not be around it. The difference is subtle, but distinct. YOU remove YOURSELF, not try and control HIS behavior.
You have every right to do this, and in my opinion, the responsibility if there are minor children around.
Sorry your husband has a drug problem. We all have had this in our lives (here on S/R). "It sucks" doesn't nearly do justice to how awful it is.